64 bit

volcore · Joined: 22 Jan 2007 Posts: 19

Hi,
I'd like to know if there is any information about if and when 64bit versions of dmd and gdc become available and who is working on it.

Also it would be interesting to learn how portable current code is. I can foresee some problems, eg most of the C interface code is using int with a fixed size in D of 32 bits, but on some platforms (eg. ILP64) it has a size of 64 bits.

My motivation is that I'd really love to use D at our office, but we have some 64 bit machines on which the code has to compile and run as well.

Cheers,
Volker

sean · Joined: 24 Jun 2004 Posts: 609 Location: Bay Area, CA

GDC seems to be making progress, but DMD may take a while. int sizes shouldn't matter because sizes are fixed in D. Or do you mean simply the C headers represented in C (std.c)? In that case, as far as I know int is 32 bits regardless and only long changes based on platform. The Tango C interface code takes this into account.